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Finding the Fourth Proportional to 83,396.44, 115,086.92 and 45,156.02

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Solution

The fourth proportional to 83,396.44, 115,086.92 and 45,156.02 is: 62,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,396.44 : 115,086.92 = 45,156.02 : x
  2. Step 2: Convert to fraction form
    83,396.44/115,086.92 = 45,156.02/x
  3. Step 3: Cross multiply
    83,396.44x = 115,086.92 × 45,156.02
  4. Step 4: Simplify right side
    83,396.44x = 5,196,867,261.26
  5. Step 5: Solve for x
    x = 5,196,867,261.26/83,396.44
  6. Step 6: Final answer
    x = 62,315.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.